Medieval: Mosaics and glass paintings, St Marks, Venice.

• The symmetry group of the tiling is ** (pm).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains two squares.
• Contains two regular two-pointed star polygons with vertex angle of 45°.
• There is one non-regular reflective tile.
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 115 polygons.

1. Plate 50 of Auguste Racinet. Full-Color Picture Sourcebook of Historic Ornament, Dover, 1886. ISBN 048626096. [racinet]

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